/* ============================================================
   Niara Studio — vanilla CSS (no framework)
   Design tokens from DESIGN.md ("Sakura Precision")
   ============================================================ */

:root {
  /* Colors */
  --background: #131313;
  --surface: #131313;
  --surface-container-lowest: #0e0e0e;
  --on-surface: #e5e2e1;
  --on-surface-variant: #d6c2c4;
  --secondary: #ffb2ba;
  --primary-container: #ffb7c5;
  --on-primary-container: #50212d;

  /* Typography */
  --font-display: "Montserrat", system-ui, sans-serif;
  --font-body: "Inter", system-ui, sans-serif;
  --font-label: "Geist", ui-monospace, monospace;

  /* Layout */
  --container-max: 1280px;
  --margin-inline: 20px;
  --gutter: 24px;
  --section-gap: 96px;
  --radius-lg: 0.5rem;   /* 8px  — cards */
  --radius-xl: 0.75rem;  /* 12px — large containers */
}

@media (min-width: 768px) {
  :root {
    --margin-inline: 64px;
    --section-gap: 120px;
  }
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  background: var(--background);
  color: var(--on-surface);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; }

::selection { background: var(--primary-container); color: var(--on-primary-container); }

:focus-visible { outline: 2px solid var(--secondary); outline-offset: 3px; border-radius: 2px; }

/* ---------- Helpers ---------- */
.container {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--margin-inline);
}

.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
.skip-link {
  position: absolute; left: 1rem; top: -100px; z-index: 60;
  background: var(--primary-container); color: var(--on-primary-container);
  padding: .5rem 1rem; border-radius: var(--radius-lg); font-weight: 700;
  transition: top .2s ease;
}
.skip-link:focus { top: 1rem; }

.eyebrow {
  font-family: var(--font-label);
  font-size: 12px; font-weight: 500; letter-spacing: .1em;
  text-transform: uppercase; color: var(--secondary);
}

.icon { width: 1.5rem; height: 1.5rem; stroke: currentColor; fill: none;
  stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }

/* ---------- Typography scale ---------- */
.display {
  font-family: var(--font-display);
  font-weight: 700; line-height: 1.15; letter-spacing: -0.02em;
  font-size: clamp(40px, 6vw, 64px);
}
.headline {
  font-family: var(--font-display);
  font-weight: 600; font-size: clamp(28px, 4vw, 32px); line-height: 1.3;
}
.brand { font-family: var(--font-display); font-weight: 700; font-size: 18px; letter-spacing: -0.01em; }
.lead { font-size: 18px; color: var(--on-surface-variant); }
.muted { color: var(--on-surface-variant); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-block; text-align: center;
  font-family: var(--font-display); font-weight: 700; font-size: 16px;
  padding: 1rem 2rem; border-radius: var(--radius-lg);
  transition: transform .3s ease, box-shadow .3s ease, background-color .3s ease;
}
.btn-primary { background: var(--primary-container); color: var(--on-primary-container); }
.btn-primary:hover { box-shadow: 0 0 22px rgba(255,183,197,.35); }
.btn-outline { border: 1px solid var(--secondary); color: var(--secondary); }
.btn-outline:hover { background: rgba(255,178,186,.06); }
.btn-sm { padding: .5rem 1.5rem; }
.btn-sm:hover { transform: scale(1.05); box-shadow: none; }

/* ---------- Header / Nav ---------- */
.header {
  position: fixed; inset: 0 0 auto 0; z-index: 50;
  background: rgba(19,19,19,.4);
  -webkit-backdrop-filter: blur(16px); backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255,255,255,.1);
}
.nav {
  display: flex; align-items: center; justify-content: space-between;
  padding-block: 1.5rem;
}
.nav-links { display: none; gap: 2.5rem; }
.nav-links a { color: rgba(229,226,225,.7); font-family: var(--font-display); transition: color .3s; }
.nav-links a:hover { color: var(--secondary); }
.nav-actions { display: flex; align-items: center; gap: 1rem; }
.menu-toggle { display: inline-flex; background: none; border: 0; color: var(--on-surface); padding: .5rem; margin-right: -.5rem; }
.menu-toggle .icon { width: 1.75rem; height: 1.75rem; }
.nav-cta { display: none; }

.mobile-menu { display: none; border-top: 1px solid rgba(255,255,255,.1);
  background: rgba(19,19,19,.97); -webkit-backdrop-filter: blur(16px); backdrop-filter: blur(16px); }
.mobile-menu.open { display: block; }
.mobile-menu .container { display: flex; flex-direction: column; padding-block: 1rem; }
.mobile-menu a { padding: .75rem 0; color: rgba(229,226,225,.85); font-family: var(--font-display); transition: color .3s; }
.mobile-menu a:hover { color: var(--secondary); }
.mobile-menu .btn { margin-top: .5rem; }

@media (min-width: 768px) {
  .nav-links { display: flex; }
  .nav-cta { display: inline-block; }
  .menu-toggle { display: none; }
}

/* ---------- Hero ---------- */
.hero {
  position: relative; min-height: 100svh; display: flex; align-items: center;
  padding-top: 6rem; overflow: hidden;
  /* Replaces the old background <img>: pure-CSS sakura gradient */
  background:
    radial-gradient(60% 55% at 72% 28%, rgba(255,178,186,.10), transparent 60%),
    radial-gradient(50% 50% at 15% 85%, rgba(255,183,197,.06), transparent 60%),
    var(--background);
}
.hero-inner {
  position: relative; z-index: 1;
  display: flex; flex-direction: column; align-items: center; gap: 4rem;
  text-align: center;
}
.hero-copy { display: flex; flex-direction: column; gap: 2rem; align-items: center; }
.pill {
  align-self: center;
  display: inline-block; padding: .375rem 1rem; border-radius: 999px;
  border: 1px solid rgba(255,178,186,.3); background: rgba(255,178,186,.1);
  color: var(--secondary);
  font-family: var(--font-label); font-size: 12px; letter-spacing: .1em; text-transform: uppercase;
}
.hero h1 { max-width: 16ch; }
.hero h1 .accent { color: var(--secondary); }
.hero-copy .lead { max-width: 34rem; }
.hero-actions { display: flex; flex-direction: column; gap: 1.5rem; width: 100%; max-width: 22rem; }

.hero-figure { position: relative; }
.hero-portrait {
  position: relative; width: min(72vw, 480px); aspect-ratio: 1; margin-inline: auto;
  border-radius: 1rem; overflow: hidden; border: 1px solid rgba(255,255,255,.1);
  box-shadow: 0 0 60px -10px rgba(255,183,197,.35); /* sakura-glow */
}
.hero-portrait img { width: 100%; height: 100%; object-fit: cover; transition: transform .7s ease; }
.hero-portrait:hover img { transform: scale(1.05); }
.hero-portrait::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(19,19,19,.4), transparent);
}
.glow { position: absolute; width: 12rem; height: 12rem; border-radius: 999px; filter: blur(100px); pointer-events: none; }
.glow.tr { top: -3rem; right: -3rem; background: rgba(255,178,186,.12); }
.glow.bl { bottom: -3rem; left: -3rem; background: rgba(255,183,197,.12); }

@media (min-width: 768px) {
  .hero-inner { flex-direction: row; text-align: left; }
  .hero-copy { align-items: flex-start; flex: 1; }
  .pill { align-self: flex-start; }
  .hero-actions { flex-direction: row; width: auto; }
  .hero-figure { flex: 1; }
}

/* ---------- Section rhythm ---------- */
.section { padding-block: var(--section-gap); scroll-margin-top: 6rem; }
.section--alt { background: rgba(14,14,14,.5); }
.section-head { margin-bottom: 4rem; }
.section-head .eyebrow { display: block; margin-bottom: 1rem; }

/* ---------- About ---------- */
.about-grid { display: grid; gap: var(--gutter); align-items: center; }
.about-grid p + p { margin-top: 1.5rem; }
.about-grid .lead { line-height: 1.7; }
@media (min-width: 768px) {
  .about-grid { grid-template-columns: 5fr 7fr; gap: 4rem; }
  .about-head .eyebrow { margin-bottom: 1rem; display: block; }
  .about-head .headline { margin-top: .5rem; }
}

/* ---------- Services ---------- */
.card-grid { display: grid; gap: var(--gutter); grid-template-columns: 1fr; }
@media (min-width: 640px) { .card-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .card-grid { grid-template-columns: repeat(3, 1fr); } }

.card {
  display: flex; flex-direction: column; gap: 1.5rem;
  padding: 2.5rem; border-radius: var(--radius-xl);
  background: rgba(30,30,30,.5);
  border: 1px solid rgba(255,255,255,.08);
  -webkit-backdrop-filter: blur(20px); backdrop-filter: blur(20px);
  transition: border-color .3s ease, transform .3s ease;
}
.card:hover { border-color: rgba(255,183,197,.4); transform: translateY(-4px); }
.card h3 { font-family: var(--font-display); font-weight: 600; font-size: 32px; line-height: 1.3; }
.card-icon {
  width: 3rem; height: 3rem; display: inline-flex; align-items: center; justify-content: center;
  border-radius: var(--radius-lg); background: rgba(255,178,186,.1); color: var(--secondary);
  transition: background-color .3s ease, color .3s ease;
}
.card:hover .card-icon { background: var(--secondary); color: var(--background); }

/* ---------- Portfolio ---------- */
.portfolio-head {
  display: flex; flex-direction: column; gap: 2rem;
  align-items: flex-start; justify-content: space-between; margin-bottom: 4rem;
}
.portfolio-head .link {
  font-family: var(--font-label); font-size: 12px; letter-spacing: .1em; text-transform: uppercase;
  color: var(--on-surface-variant); border-bottom: 1px solid rgba(214,194,196,.2); padding-bottom: .25rem;
  transition: color .3s;
}
.portfolio-head .link:hover { color: var(--secondary); }

.bento { display: grid; grid-template-columns: 1fr; gap: 2rem; }
.work {
  position: relative; overflow: hidden; border-radius: var(--radius-xl);
  border: 1px solid rgba(255,255,255,.05); height: 400px;
}
.work img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transition: transform .7s ease; }
.work:hover img { transform: scale(1.05); }
.work::before {
  content: ""; position: absolute; inset: 0; z-index: 1;
  background: linear-gradient(to top, rgba(19,19,19,.9), transparent 55%);
  opacity: 0; transition: opacity .3s ease;
}
.work:hover::before { opacity: 1; }
.work-meta {
  position: absolute; z-index: 2; left: 2rem; right: 2rem; bottom: 2rem;
  opacity: 0; transform: translateY(1rem); transition: opacity .3s ease, transform .3s ease;
}
.work:hover .work-meta { opacity: 1; transform: none; }
.work-meta .tag {
  display: inline-block; margin-bottom: .75rem; padding: .25rem .75rem; border-radius: 4px;
  background: rgba(255,178,186,.2); color: var(--secondary);
  font-family: var(--font-label); font-size: 10px; letter-spacing: .08em; text-transform: uppercase;
}
.work-meta h3 { font-family: var(--font-display); font-weight: 600; font-size: clamp(24px, 3vw, 32px); line-height: 1.3; }
.work-meta p { margin-top: .5rem; color: var(--on-surface-variant); }

@media (min-width: 768px) {
  .portfolio-head { flex-direction: row; align-items: flex-end; }
  .bento { grid-template-columns: repeat(12, 1fr); }
  .work.span-8 { grid-column: span 8; }
  .work.span-4 { grid-column: span 4; }
  .work.tall { height: 500px; }
}

/* ---------- Contact ---------- */
.contact-grid { display: grid; gap: 4rem; align-items: center; }
@media (min-width: 1024px) { .contact-grid { grid-template-columns: 1fr 1fr; gap: var(--section-gap); } }

.contact-info .headline { margin-block: 2rem; }
.contact-info .lead { margin-bottom: 3rem; }
.contact-list { display: flex; flex-direction: column; gap: 1.5rem; }
.contact-list li { display: flex; align-items: center; gap: 1rem; list-style: none; }
.contact-list .icon { color: var(--secondary); flex: none; }
.contact-list a:hover { color: var(--secondary); }

.form-card {
  padding: clamp(2rem, 4vw, 3rem); border-radius: var(--radius-xl);
  background: rgba(30,30,30,.5); border: 1px solid rgba(255,255,255,.08);
  -webkit-backdrop-filter: blur(20px); backdrop-filter: blur(20px);
}
.form { display: flex; flex-direction: column; gap: 1.5rem; }
.form-row { display: grid; gap: 1.5rem; }
@media (min-width: 768px) { .form-row { grid-template-columns: 1fr 1fr; } }
.field { display: flex; flex-direction: column; gap: .5rem; }
.field label {
  font-family: var(--font-label); font-size: 10px; letter-spacing: .08em;
  text-transform: uppercase; color: var(--on-surface-variant);
}
.field input, .field textarea, .field select {
  width: 100%; padding: 1rem; color: var(--on-surface);
  background: rgba(19,19,19,.5); border: 1px solid rgba(255,255,255,.1);
  border-radius: var(--radius-lg); font: inherit;
  transition: border-color .2s ease, box-shadow .2s ease;
}
.field textarea { resize: vertical; min-height: 7rem; }
.field input::placeholder, .field textarea::placeholder { color: rgba(214,194,196,.5); }
.field input:focus, .field textarea:focus, .field select:focus {
  outline: none; border-color: var(--secondary); box-shadow: 0 0 0 1px var(--secondary);
}
.field select {
  appearance: none; padding-right: 3rem;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%23d6c2c4'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 1rem center; background-size: 1.25rem;
}
.field select option { background: var(--surface-container-lowest); color: var(--on-surface); }
.form .btn { width: 100%; }

/* ---------- Footer ---------- */
.footer { background: var(--surface); border-top: 1px solid rgba(255,255,255,.05); padding-block: var(--section-gap); }
.footer-top {
  display: flex; flex-direction: column; align-items: center; gap: var(--gutter);
  margin-bottom: 3rem; text-align: center;
}
.footer-brand { display: flex; flex-direction: column; align-items: center; gap: 1rem; }
.footer-cta { display: flex; flex-direction: column; align-items: center; gap: 1.5rem; }
.footer-bottom {
  display: flex; flex-direction: column; align-items: center; gap: 1.5rem;
  border-top: 1px solid rgba(255,255,255,.05); padding-top: 3rem; text-align: center;
}
.footer-bottom .copyright { font-family: var(--font-label); font-size: 12px; letter-spacing: .06em; color: rgba(214,194,196,.6); }
.social { display: flex; gap: 2rem; list-style: none; }
.social a {
  font-family: var(--font-label); font-size: 12px; letter-spacing: .08em; text-transform: uppercase;
  color: rgba(214,194,196,.8); transition: color .3s;
}
.social a:hover { color: var(--secondary); }

@media (min-width: 768px) {
  .footer-top { flex-direction: row; justify-content: space-between; align-items: center; text-align: left; }
  .footer-brand { align-items: flex-start; }
  .footer-cta { align-items: flex-end; }
  .footer-bottom { flex-direction: row; justify-content: space-between; }
}

/* ---------- Scroll reveal ---------- */
.reveal { opacity: 0; transform: translateY(2.5rem); transition: opacity 1s ease, transform 1s ease; }
.reveal.is-visible { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  *, *::before, *::after { animation-duration: .001ms !important; transition-duration: .001ms !important; }
}